There is a thread in there about how people in leadership positions (particularly leader of CERN) are no longer physicists because they switch to doing politics. I don't know why but physics seems to be obsessed with identifying whether a person is truly a physicist or not. It is pervasive in every corner of the physics world I've been to. It is especially present in those in junior positions. Perhaps it is part of the process of joining the research community. But I wonder what benefit this offers those who do it?